Joan Crawford plays the title character. She's a jewel thief and partner of William Powell. She cons her way into a rich society family and romances Robert Montgomery. But then she grows to like the people she's supposed to be stealing from so she has a crisis of conscience. With a cast like this (Crawford, Powell, Montgomery, Frank Morgan, Nigel Bruce), there really is no reason this shouldn't have worked. But it doesn't. It's a little stagey and dry. Powell is not in it enough. When he is on screen, the script doesn't give him a chance to shine. As a matter of fact, it seemed to me like he didn't even want to be there playing second fiddle to Robert Montgomery. Can't say that I blamed him, if that's the case. I like Montgomery alright in certain roles but these movies he did with Joan were not among them. See it for the cast but don't get your hopes up.